Use repo aliases

Chart.yaml

@@ -4,15 +4,15 @@ description: |
 name: nextcloud-onlyoffice
 version: 0.2.4
 dependencies:
-  - name: nextcloud/nextcloud
+  - name: nextcloud
     version: 1.10.1
-    repository: https://nextcloud.github.io/helm
+    repository: "@nextcloud"
   - name: rabbitmq
     version: 6.18.2
-    repository: https://charts.bitnami.com/bitnami
+    repository: "@bitnami"
   - name: redis
     version: 10.5.7
-    repository: https://charts.bitnami.com/bitnami
+    repository: "@bitnami"
   - name: postgresql
     version: 8.6.4
-    repository: https://charts.bitnami.com/bitnami
+    repository: "@bitnami"